Pledge $6.28 or more per month

Base Ten

$10 or more per month ∙ 44 patrons

Base Ten Supporter
As above, plus:
- First glimpse at some of our main videos (see them while still unlisted and not "public" to normal YouTube subscribers)
- Exclusive other stuff from behind the scenes.

Graham's Number Supporters

Prime Supporter

$101 or more per month ∙ 6 of 20 patrons

Prime Supporter
All the same stuff as above, plus:
- On a regular basis we'll post you an extra treat. It might be a mathematical postcard, a toy or something we've not even thought of yet, but it will also contain a personally signed message from us here at Numberphile.

Perfect Supporter

$496 or more per month ∙ 2 of 6 patrons

Perfect Supporter
Put this here because we wanted a "perfect number pledge" and 8128 would have been truly ridiculous!
- You'll receive an original, signed brown paper, prop or piece of artwork used in the making of a Numberphile video.
- Join a hang-out with Brady to discuss what he's working on (and tell him what he SHOULD be working on).
All previous rewards also apply of course (and, wow, you must really love numbers!)